#include<stdio.h>
#include<conio.h>
void main()
{
	int x = 4, y = 0, z;

	clrscr();

	while(x >= 0)
	{

	 x--;
	 y++;
	 if(x ==  y)
		continue;
	 else

		printf("\n\t%d%d",x,y);
	}

	getch();
}